sinclude(./aclocal.m4)dnl Autoconf lossage. GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. dnl Autoconf weirdness requires that AC_CHECK_TOOL be in the main configure.in, dnl but only on Mach-based configurations is the tool needed. if test "x$MIG" = xMISSING; then AC_MSG_ERROR([cannot find required build tool mig]) fi ### Sanity checks for Mach header installation AC_CHECK_HEADER(mach/mach_types.h,, [AC_MSG_ERROR([cannot find Mach headers])]) AC_CHECK_HEADER(mach/mach_types.defs,, [dnl AC_MSG_ERROR([cannot find Mach .defs files])]) dnl dnl mach_TYPE_CHECK(foo_t, bar_t) dnl dnl Check if foo_t is defined by . dnl If not, compile with -Dfoo_t=bar_t. dnl AC_DEFUN([mach_TYPE_CHECK], [dnl AC_CACHE_CHECK(for $1 in mach/mach_types.h, libc_cv_mach_$1, AC_TRY_COMPILE([#include ], [extern $1 foo;], libc_cv_mach_$1=$1, libc_cv_mach_$1=$2)) if test [$]libc_cv_mach_$1 != $1; then DEFINES="$DEFINES -D$1=$2" fi]) dnl dnl OSF Mach has renamed these typedefs for some reason. dnl mach_TYPE_CHECK(task_t, task_port_t) mach_TYPE_CHECK(thread_t, thread_port_t) dnl dnl The creation_time field is a GNU Mach addition the other variants lack. dnl AC_CACHE_CHECK(for creation_time in task_basic_info, libc_cv_mach_task_creation_time, [dnl AC_TRY_COMPILE([#include ], [ extern struct task_basic_info *i; long s = i->creation_time.seconds; ], libc_cv_mach_task_creation_time=yes, libc_cv_mach_task_creation_time=no)]) if test $libc_cv_mach_task_creation_time = no; then DEFINES="$DEFINES -DNO_CREATION_TIME=1" fi dnl dnl The Darwin variant no longer has dnl but instead has several constituent .defs files. dnl In this scenario we will presume there is a dnl that contains an #include for each constituent header file, dnl but we don't do a check for that here because in a bare dnl environment the compile against those headers will fail. dnl mach_interface_list= for ifc in mach mach4 \ clock clock_priv host_priv host_security ledger lock_set \ processor processor_set task thread_act vm_map \ memory_object memory_object_default default_pager \ i386/mach_i386 \ ; do AC_CHECK_HEADER(mach/${ifc}.defs, [dnl mach_interface_list="$mach_interface_list $ifc"]) done if test "x$mach_interface_list" = x; then AC_MSG_ERROR([what manner of Mach is this?]) fi AC_CACHE_CHECK(for host_page_size in mach_host.defs, libc_cv_mach_host_page_size, [dnl AC_EGREP_HEADER(host_page_size, mach/mach_host.defs, libc_cv_mach_host_page_size=yes, libc_cv_mach_host_page_size=no)]) if test $libc_cv_mach_host_page_size = yes; then AC_DEFINE([HAVE_HOST_PAGE_SIZE]) fi AC_CHECK_HEADER(mach/machine/ndr_def.h, [dnl DEFINES="$DEFINES -DNDR_DEF_HEADER=''"], [dnl AC_CHECK_HEADER(machine/ndr_def.h, [dnl DEFINES="$DEFINES -DNDR_DEF_HEADER=''"])]) AC_CACHE_CHECK(for i386_io_perm_modify in mach_i386.defs, libc_cv_mach_i386_ioports, [dnl AC_EGREP_HEADER(i386_io_perm_modify, mach/i386/mach_i386.defs, libc_cv_mach_i386_ioports=yes, libc_cv_mach_i386_ioports=no)]) if test $libc_cv_mach_i386_ioports = yes; then AC_DEFINE([HAVE_I386_IO_PERM_MODIFY]) fi AC_CACHE_CHECK(for i386_set_gdt in mach_i386.defs, libc_cv_mach_i386_gdt, [dnl AC_EGREP_HEADER(i386_set_gdt, mach/i386/mach_i386.defs, libc_cv_mach_i386_gdt=yes, libc_cv_mach_i386_gdt=no)]) if test $libc_cv_mach_i386_gdt = yes; then AC_DEFINE([HAVE_I386_SET_GDT]) fi